EP 4117059 A4 20240515 - METHOD FOR MANUFACTURING ACTIVE MATERIAL

Title (en)

METHOD FOR MANUFACTURING ACTIVE MATERIAL

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES AKTIVEN MATERIALS

Title (fr)

PROCÉDÉ DE FABRICATION DE MATÉRIAU ACTIF

Publication

EP 4117059 A4 20240515 (EN)

Application

EP 21764408 A 20210303

Priority

JP 2021008236 W 20210303
JP 2020039305 A 20200306

Abstract (en)

[origin: EP4117059A1] A method for manufacturing an active material, the method comprising the following steps:(1) mixing an activation agent containing one kind or two or more kinds of alkali metal compounds into an electrode mixture containing an active material and a binder;(2) heating a mixture thus obtained to a temperature higher than or equal to a melting start temperature of the activation agent in an atmosphere having an oxygen partial pressure of 0.3 atm or higher; and(3) collecting an active material from the mixture after heating.

IPC 8 full level

H01M 4/505 (2010.01); C01G 53/00 (2006.01); H01M 4/525 (2010.01); H01M 4/58 (2010.01); H01M 10/54 (2006.01)

CPC (source: EP KR US)

C01G 53/50 (2013.01 - EP US); H01M 4/505 (2013.01 - EP KR US); H01M 4/525 (2013.01 - KR US); H01M 4/58 (2013.01 - KR); H01M 10/54 (2013.01 - KR); C01P 2002/50 (2013.01 - US); C01P 2002/76 (2013.01 - EP); C01P 2002/78 (2013.01 - EP); C01P 2006/40 (2013.01 - US); H01M 50/109 (2021.01 - US); H01M 2004/028 (2013.01 - KR); Y02E 60/10 (2013.01 - EP); Y02W 30/84 (2015.05 - EP)

Citation (search report)

[X] CN 110797602 A 20200214 - WUHAN RUIJIETE MAT CO LTD
[A] CN 110217830 A 20190910 - UNIV WUHAN
[A] CN 105244560 A 20160113 - SHANGHAI QIMOU ENERGY TECH
See also references of WO 2021177362A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 4117059 A1 20230111; EP 4117059 A4 20240515; CN 115210937 A 20221018; JP 2021140996 A 20210916; JP 2023184546 A 20231228; JP 7474607 B2 20240425; KR 20220150904 A 20221111; US 2023094145 A1 20230330; WO 2021177362 A1 20210910

DOCDB simple family (application)

EP 21764408 A 20210303; CN 202180018680 A 20210303; JP 2020039305 A 20200306; JP 2021008236 W 20210303; JP 2023175936 A 20231011; KR 20227031018 A 20210303; US 202117908804 A 20210303